Drill-brace.



N. I. MOSHER. DRILL BRAOE.

APPLICATION FILED MAY 3, 1913.

1,095, 1 62. Patented Apr. 28, 1914.

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NICHOLAS I. MOSHER, OF SOMEBVILLE, MASSACI-IUSETTS.

DRILL-BRACE.

Specification of Letters Patent.

' Patented Apr. 28, 1914.

Application filed May 3, 1913. Serial No. 765,316.

To all whom it may concern:

Be it known that I, NICHOLAS I. MosHER, a citizen of the United States, residing at Somerville, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Drill-Braces, of which the following is a specification.

This invention relates to improvements in drill braces and has particular application to a universal brace for holding electrically, pneumatically and manually operated drills and other similar tools to the work.

In carrying out the present invention, it is my purpose to provide a universal brace of the class described whereby a drill or other tool may be held to the work and at any desired angle relatively thereto so that the work may be acted upon in the proper manner without necessitating manual maintaining of the drill in position.

It is also my purpose to provide a brace of the type set forth which will embody few and relatively movable parts which may be thrown to any relative positions and maintained in such positions so that accidental displacement of the parts after adjustment is avoided.

Furthermore, I aim to provide a drill brace which will embrace the desired features of simplicity, efficiency, durability and convenience coupled with cheapness of cost in manufacture and marketing and which may be readily and conveniently manipulated to hold the drill or other tool to the work in the proper position or at the desired angle.

lVith the above and other objects in view, the invention consists in the construction, combination and arrangement of parts hereinafter set forth in and falling within the scope of the claim.

In the accompanying drawings: Figure l is a view in front elevation of a drill brace constructed in accordance with my present invention. Fig. 2 is a side elevation thereof. Fig. 3 is a similar View showing the parts in different relative positions than in Fig.

2-. Fig. 4: is a cross sectional view on the line 4E4 of Fig. 1. Fig. 5 is a similar view on the line 5-5 of Fig. 1; Fig. 6 is a view in elevation showing one manner of using the brace. Fig. 7 is a face view of one of the adjusting disks. Fig. 8 is a bot-tom plan view of the arm.

Referring now to the accompanying drawings in detail, the numeral 1 indicates the base of the brace, such base having an elongated'slot 2 formed therein for a portion of its length and has one end enlarged and partially circular in outline, as at 3.

Seated upon and suitably fastened to the enlarged portion 3 of the base is a plate 4t upstanding from which is a disk 5 formed with a central aperture. A second disk 6 is placed in face to face contact with the disk 5 and the confronting faces of the disks 5 and 6 are toothed or otherwise formed so that when the disks are clamped together relative movement thereof will be prevented. The outer face of the disk 6 is equipped with a socket member 8 provided with an aperture alining with an aperture in the disk 6, such apertures registering with the aperture in the disk 5 to receive securing screw 9 threadedly engaging the aperture in the disk 5 and provided with an operating handle 10 whereby the toothed faces of the disks may be interlocked to prevent relative movement thereof and such faces separated so that the disk 6 may be moved relatively to the disk 5 or vice versa.

Seated within the socket member 8 is one end of a standard or post 11, such end having an opening formed therein through which the body of the screw 9 is passed whereby accidental removal or displacement of the post or standard from the base is eliminated. This post or standard 11 is preferably circular in cross section and has mounted therein for sliding movement a clamping sleeve 12 formed, in the present instance, of a split band having the ends thereof outturned to provide wings or lugs 13 formed with apertures designed to threadedly receive a fastening screw 14: provided with a manipulating handle 15 whereby the sleeve or band may be clamped to the post or standard in any desired position. Suitably secured to the band 12 or formed integral therewith as desired preferably at a point diametrically opposite the ears or wings 13 is a disk 16 disposed in a plane parallel with that of the standard and formed with an annular row of openings 17 adjacent to the periphery thereof. Contacting with the outer face of the disk 16 is a second disk 18 formed with'diametrically disposed segmental slots 19, 19 adapted'to register with any two diametrically opposed openings 1? in the disk 16 and designed to receive set screws 20 threadedly engaging the aperture 17 in the first disk. By means of this construction, it will be seen that by loosening the screws 20, the disk 18 may be adjusted angularly relatively to the disk 16, the slots 19 determining the range of such adjustment. However, when a greater adjustment than is permitted by the slot 19 is desired or found necessary, the set screws 20 may be removed from the initial set of openings 17 in the disk 16 and. placed in another set thereby enabling the range of adjustment of the disk 18 to be varied according to the circumstances or exigencies of any particular case. Extending outwardly from the outer face of the disk 18 in a plane at right angles to the plane of the standard or base 11 is an arm 21 of any suitable construction and provided with a wide flat under face 22to which is bolted or otherwise appropriately fastened a steel plate 23 formed with a series 01' recesses 2 1 spaced apart along the length of the plate. By means of the connection between the sleeve 12 and the arm 21, it will be seen that the arm may be rotated about its longitudinal'center line or axis and relatively to the sleeve and standard or post 11.

From the foregoing description taken in connection with the accompanying drawings, the construction, mode of operation and manner of employing my invention will be readily apparent; in Fig. 6 I have illustrated one manner of using my improved universal drill brace and have shown the same as holding a pneumatic drill upon and at an angle to a bedplate so that a bolt or similar tool may be drilled into the same. In this use of the brace, the base 1 is fastened to the respective portion of the bed plate byineans of a bolt or the like passed through the slot 2, while the securing screw 9 is loosened by means of the handle 10 so that the interlocking faces of the disks 5 and 6 may be separated and the disk 6 rotated relatively to the disk 5 so as to throw the standard or post 11 tothe desired angle. The screw 9 is now tightened thereby interlocking the teeth on the confronting faces of the disks 5 and 6 and maintainingcthe post in the adjusted position. The screw 14 is now loosened by means of the handle 15 so that the sleeve 12 is relieved of biting engagement with the post 11. The sleeve is now slid along the standard so that the arm 21 is moved toward the bed plate to contact the adjacent end of the drill, such end of the drill entering one of the recesses 24; in the plate 23 secured to the under face of the arm, the screw 14 being now tightened so as to hold the arm and consequently the drill securely. By loosening the screws 20, 20, it will be seen that the arm 21 may be rotated so that the drill may be held in different angular positions.

While I have herein. shown and described one preferred form of my invention by way of illustration, I desire to have it understood that I do not limit or confine myself to the precise details of construction herein described and delineated, as modification and variation may be made within the scope of the claims and without departing from the spirit of the invention.

I claim:

A universal brace comprising a base, a post secured to said base, a sleeve slidably mounted on said post, an arm, and a connection between said sleeve and arm whereby the arm may be rotated about its longitudinal center line and relatively to the post, said connection comprising a disk secured to said sleeve and formed with an annular row of apertures in the front face adjacent to the periphery thereof, a second disk secured to the adjacent end of said arm and placed in face to face contact with the firstmentioned disk and having segmental slots formed therein at diametrically opposite points and adapted to register with any two diametrically opposed apertures in said first disk, and set screws passed through said slots and engaging the respective pair of apertures.

In testimony whereof I allix my signature in presence of two witnesses.

NICHOLAS I. MOSI-IER.

lVitnesses IIERMAN NATHAN GALE, WILLIAM C. MACINTYRE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. G. 

